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3 years ago

The value of (-7)2 is negative. True False

Mathematics

2 answers:

nexus9112 [7]3 years ago

5 0

Answer:

true multiplying a positive by a negative makes a negative number. think of it like flipping upside down. You will only be right side up if you flip upside down again after already being upside down.

fomenos3 years ago

3 0

Answer: True

Step-by-step explanation: A positive times a negative integer always equals a negative. That means (-7)2= -14

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The table below shows the number of shoppers at Jacob's store over a period of five months:

Olin [163]

We are given table

Month : 1 2 3 4 5

Shoppers: 50 250 1250 6250 3250

so, we have

first term =50

$a_1=50$

Second term =250

$a_2=250$

Third term =1250

$a_3=1250$

$a_4=6250$

$a_5=31250$

now, we can find ratios

$\frac{a_2}{a_1} =\frac{a_3}{a_2}=\frac{a_4}{a_3}=\frac{a_5}{a_4}=5$

we can see that all ratios are same and 5

so, this is exponential

so, option-D..........Answer

3 0

3 years ago

Read 2 more answers

What times 4/5 equals 3/4

bagirrra123 [75]

Answer:

15/16

Step-by-step explanation:

4/5 x=3/4

x=(3/4)/(4/5)

x=15/16

6 0

3 years ago

Consider the functions below. f(x, y, z) = x i − z j + y k r(t) = 4t i + 6t j − t2 k (a) evaluate the line integral c f · dr, wh

fredd [130]

With

$\vec r(t)=4t\,\vec\imath+6t\,\vec\jmath-t^2\,\vec k$

we have

$\mathrm d\vec r=(4\,\vec\imath+6\,\vec\jmath-2t\,\vec k)\,\mathrm dt$

The vector field evaluated over this parameterization is

$\vec f(x,y,z)=\vec f(x(t),y(t),z(t))=4t\,\vec\imath+t^2\,\vec\jmath+6t\,\vec k$

so the line integral is

$\displaystyle\int_{-1}^1(4t\,\vec\imath+t^2\,\vec\jmath+6t\,\vec k)\cdot(4\,\vec\imath+6\,\vec\jmath-2t\,\vec k)\,\mathrm dt$

$=\displaystyle\int_{-1}^1(16t+6t^2-12t^2)\,\mathrm dt=-4$

6 0

3 years ago

Olivia went to buy shoes at the mall. The shoes cost $55. If tax was 8%, how much did Olivia pay in all? i don't understand it

Alik [6]

Answer:

$59.40

Step-by-step explanation:

8% is equal to 0.08

since you are adding the tax to the original cost you will multiply 55 by 1.08 to get the cost of the shoes plus the tax.

5 0

3 years ago

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How many solutions are there to the following system of equations? 3x-9y=0 -x+3y=-3

Cloud [144]

Answer:

no solution

Step-by-step explanation:

if you graph both equation the lines are parallel.

parallel = no solution

overlap = infinite solution

intersect = one solution

4 0

3 years ago